NMR Spectrometers

500 MHz Bruker Avance II

Our shielded 500 MHz spectrometer generally operates with a TCI HCN z-gradient cryoprobe. The most recent S/N measurement was 4000:1 using the EB 200 method. The Avance III console contains three full-power channels for pulsing on 1H, 13C, and 15N, and a fourth channel with a 20 W amplifier suitable for decoupling 2H. The instrument is controlled using TopSpin 3.1. A room-temperature TXI z-gradient probe is also available if needed; both probes have automatic tuning and matching capability.

Brown University 500

850 MHz Bruker Avance III HD

Brown University 850An 850 MHz ASCEND spectrometer with cryoprobe and Avance III HD console has recently been installed. The spectrometer is equipped with four full channels and a TCI HCN z-gradient cryoprobe. The instrument is controlled using a Linux workstation running TopSpin 3.2. A room-temperature probe is also available; both probes have automatic tuning and matching capability. We have some photos of the installation, and a video of its being lowered into the facility.